Messages in this thread | | | Date | Thu, 7 Jan 2016 09:29:57 -0800 | From | Greg KH <> | Subject | Re: [PATCH] drivers/usb: Skip auto handoff for TI and RENESAS usb controllers |
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On Thu, Jan 07, 2016 at 09:23:27AM -0800, Babu Moger wrote: > I have never seen auto handoff working on TI and RENESAS cards. > Eventually, we force handoff. This code forces the handoff > unconditionally. It saves 5 seconds boot time for each card. > > Signed-off-by: Babu Moger <babu.moger@oracle.com> > --- > drivers/usb/host/pci-quirks.c | 7 +++++++ > 1 files changed, 7 insertions(+), 0 deletions(-) > > diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c > index f940056..b7ee895 100644 > --- a/drivers/usb/host/pci-quirks.c > +++ b/drivers/usb/host/pci-quirks.c > @@ -1003,6 +1003,13 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev) > ext_cap_offset = xhci_find_next_cap_offset(base, ext_cap_offset); > } while (1); > > + /* Auto handoff never worked for these devices. Force it and continue */ > + if (pdev->vendor == PCI_VENDOR_ID_TI || > + pdev->vendor == PCI_VENDOR_ID_RENESAS) { > + val = (val | XHCI_HC_OS_OWNED) & ~XHCI_HC_BIOS_OWNED;
odd spaces here, why this format?
And are you sure that all TI and Renesas host controllers have this issue? That's a very wide and broad test you are making here...
thanks,
greg k-h
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